package filter;

import java.io.IOException;

import javax.jdo.Transaction;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import repository.PersistenceManagerUtil;
import transaction.TransactionControl;

public class TransactionFilter implements Filter {
	
	@Override
	public void destroy() {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		Transaction transaction = PersistenceManagerUtil.getPersistenceManager().currentTransaction();
		try {
			transaction.begin();
			chain.doFilter(request, response);
			transaction.commit();
		} catch (Exception e) {
			e.printStackTrace();
			transaction.rollback();
		} finally {
			//PersistenceManagerUtil.closePersistenceManager();
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
	}

}
